Case Study – Newmont Gold Quarry A geophysical case study is presented below, highlighting a successful deployment of HGI’s brand of mining geophysics and our unique toolkit for solving complex problems. A comprehensive electrical resistivity characterization project was conducted at Newmont’s Gold Quarry mine to understand the distribution of wet and dry areas in a mature gold heap leach pad. Typically, wet areas will exhibit lower resistivity values, whereas dry zones will show high resistivity. The wetting of ore and movement of leachate is controlled by permeability, which is influenced by both micro and macrostructure developed from dumping practices, geology, and ore pre-treatment. Low permeability zones, for example, may cause the leachate to bypass large portions of ore for more ac

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